This iceberg exists only in your head. The fact is that there's no McDonalds alcohol burger, and no McDonalds tobacco burger, and both alcohol and tobacco are legal. Other highly addictive substances - barbiturates, diazepam, etc. - are legal too, even though require prescriptions, but are highly available. No scary McDonalds burgers though. All this data - both on addictiveness and on availability - is widely and easily available. Try to think for yourself instead of parroting propaganda. It's harder, but it's more fun.